Patent US2524668A successfully refreshed from Google Patents.
US2524668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell
Assignee: Bright Star Battery Co
•
Filing: 1946-06-18
•
Granted: 1950-10-03
•
Expires: 1966-06-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A LEAK RESISTANT BATTERY CONSTRUCTION COMPRISING PLASTIC MATERIAL SHELL OPEN AT ONE END AND HAVING AN AWARDLY EXTENDING INTEGRAL ANNULAR FLANGE AT ITS OTHER ENDS DEFINING AN OPENING IN SAID OTHER END, A METAL CUP ANODE RESTING ON SAID FLANGE AND HAVING ITS BOTTOM EXPOSED THROUGH SAID OPENING IN SAID OTHER END OF SAID SHELL TO FACILITATE DIRECT ELECTRICAL CONTACT WITH THE SAID BOTTOM OF SAID METAL CUP ANODE, A BOBBIN WITHIN SAID CUP CONTAINING A CENTRAL ROD ELECTRODE, AN INSULATING DISK SNUGLY FITTING SAID CENTRAL ROD ELECTRODE, A SEALING COMPOUND LAYER IN SAID CUP ANODE OVERLYING SAID DISK, A SECOND DISK OF INSULATING MATERIAL SURROUNDING SAID ROD ELECTODE AND OVERLYING SAID LAYER OF SEALING COM-
Claim 2
Dependent Claim
116 words
A LEAK RESISTANT BATTERY CONSTRUCTION COMPRISING PLASTIC MATERIAL SHELL OPEN AT ONE END AND HAVING AN AWARDLY EXTENDING INTEGRAL ANNULAR FLANGE AT ITS OTHER ENDS DEFINING AN OPENING IN SAID OTHER END, A METAL CUP ANODE RESTING ON SAID FLANGE AND HAVING ITS BOTTOM EXPOSED THROUGH SAID OPENING IN SAID OTHER END OF SAID SHELL TO FACILITATE DIRECT ELECTRICAL CONTACT WITH THE SAID BOTTOM OF SAID METAL CUP ANODE, A BOBBIN WITHIN SAID CUP CONTAINING A CENTRAL ROD ELECTRODE, AN INSULATING DISK SNUGLY FITTING SAID CENTRAL ROD ELECTRODE, A SEALING COMPOUND LAYER IN SAID CUP ANODE OVERLYING SAID DISK, A SECOND DISK OF INSULATING MATERIAL SURROUNDING SAID ROD ELECTODE AND OVERLYING SAID LAYER OF SEALING COM-
References Cited (Backward Citations)
US2060832A
Cited
US2060796A
Cited
US2000510A
Cited
US2392795A
Cited
US2315592A
Cited
US2332456A
Cited
US2399089A
Cited
US2427561A
Cited
US2445005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |